Example calculation

BMI for 180 cm and 50 kg (5'11" / 110 lb)

This example calculates BMI for someone 180 cm (5'11") tall weighing 50 kg (110 lb), and shows where it falls on the standard WHO/CDC BMI category scale.

Inputs used in this example

Weight (kg)50

Height (cm)180

Estimated result

BMI

15.43

CategoryUnderweight

What this scenario tells you

For someone 180 cm tall weighing 50 kg (110 lb), the BMI works out to about 15.4, which falls into the underweight range under WHO/CDC guidelines. That's about 47 lb below the midpoint of the normal range (BMI 22 = 157 lb at this height). BMI is a quick screening number; pair it with waist circumference and body composition for a clearer picture.

Why this example matters

The result for bmi calculator uses the inputs shown above. Change one value at a time to see which assumption makes the biggest difference.

Before using the estimate to make a decision, check whether fees, units, timing, or other real-world conditions fall outside this calculation.

What to check next

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Explore nearby scenarios

Try a slightly different scenario to see how the result moves — useful for narrowing in on the values closest to your situation.

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